Impact-fuse.



K. WIESBR.

IMPACT FUSE.

APPLIOATIOH mum no. 31, 1912.

Patented Sept. 9, 1913.

my N Alil. VJ IESEE,

zpnct-Fuses, of which the fOllOWiflgI is a speci fication.

vThis invention relates to impact fuses which are adapted to operate with or with out retardation, and the subject matter of:

this invention is a fuse of this kind, which Works automatically with perfect sal et v "with or Without retardation depending on; whether the violence of the impact is grenteri or smaller.

In the nceom ianying drawing is illustrated one embodiment of the present invention representing a fuse; and Figure 1 shows a longitudinal section of the f" z Q a similar section to Fig. l. with different positions of the parts; and Fig. 3 a section on line 33 of Fig. i seen from above.

The fuse housing A is "provided with a hammer B containing a fulininete 5 which hammer is secured against displacement by means of a safety C, of Well known cen structison, actuated by centrifugal force. In front of the hammer B is situated a firing pin (f in a partition a of-the use housing )1 against the front face of this partition 0 remote from the hammer, second hammer D is resting, which inn be displaced in the same direction as the hammer B. said hammer D being secured against displacement by means of a. compressib e ring! R. in the middle of the hammer D is pro'rid" it passage (Z running in an ex direction and opening into the ring E. This "pass; communicates on the one hand, by T114311} of several berings a in the partition it. with the chamber wherein the ignition name generated;- u ndon the other hand said sage communicates with the lULPQC-ifiift? F, which is situated in the closing plug o by means of several horings a provided in the closingrplu a ofthe fuse housing.

. Thcstrengti'i of the ring E is enlcule so that cannot be compressed to any ihle" extent by the hammer D, on the imp. (-2? of the projectile against a body of smell resistance: but which ringupon impart oi the projectile against a target of great re tance, forinstnnee arn'iorplate. will he so for compressed that the passage a? of the hammer D may be closed-by a valve cone a sitn ated in the closing plug a, see Fig.2. From the passage a second I y nlsnge (1x1 branches ofi. which latter runs m a. sigh in direction as shown in the drawing-g; end opens into the free chzlmher .si deithe g ring E'hetweenthe llflfll li llhl nndt e c ingplug a, which ehamheris connected 7 the impact charge F one lgrh bi sag e31 Should the projectile ,t of smell resistance, the hammer will e! ntly be 5 shot forward hile t e 'l'aeninier eo; :eqr tence of the ring practically remains in orignel'p osition. The ignition flame wiil thei eirri've through the path 11 r? a? to the mi e-t marge, and the 'witlu'vut :1 7 retnromion W" on the at .or bani-the pr oi great i sistmice the shot so far forward on are ii'l'ipaet and oi'ercmnir' ring E that the fisthe "Valve cone a.

wi arrive throupil. to the impact chm therefore take place ith retardation. l by m ans el -this ties the fuse *Witho'et 'f case when it subsection pro ectiie on impact is desire with retardation in tin i retardation of igir' instance on tiring 'i I claim:

" wherein ed. for

*en the. turn :3. direr euitons gins-sage r d h i V member reteinijg i mine v is kn. i nel psition, and a cone ideptethto close skid direct passage on-sane im Act,"- of the projectile with a targeto'i i whereby a flame from the pelled to follow the cir. V the detonating charges 3. An impact fuse comprising a housing with two chambers divided-by a partition, a hammer in one of said chambers, normally situated at the rear of said chamber, and a member for retaining said hammer in said position .on impact with a target of slight resistance; said member being distorted by the inertia. of said hammer" onimpact against a target of great resistance; a detonatingcharge inclosed in a hollow part of the housing adjacent the'for'ward first chamber, a hammer in the second cham-- ber, a detonating charge inclosed in a hollow part of said housing, a collapsible member normally and on slight impact retaining said hammer at the rear of said second chamber, said member collapsing from the inertia of said hammer on impact against a target of great resistance; a direct passage in said hammer from said first chamber to said detonating charge; a circuitous duct in said hammer and a port registering there'- with leading to said detonating charge, a valve cone constructed to close said passage on the collapse of said member, whereby the flame from the fulminate will be compelled to take a longer cor" as to reach the detonating charge and defined action will follow.

5. An impact fuse com rising a housing with two chambers situated one behind the other and divided by a partition, a hammer in the forward chamber, normally situated at the rear of said chamber, and a member for retaining said hamma in said position on impact witHa t-arget o slight resistance, said member being distorted by the inertia of said hammer on impact against a target of great-resistance; a detonating charge inclosed in a hollow part of the housing adjacent the forward end of the forward chamber, a fulminate in the second chamber and means for igniting the fulminate on impact, passages through said partition, said hammer, said member and the wall of said housing, permitting a direct course from the second chamber to said :ietonating charge for the flame generated in said second chamber on a slight impact of he projectile.

6. An impact fuse comprising a housing with two chambers situated one behind the cent the forward end of the forward cham ber, a fulminate in the'second chamber and .means for igniting the fulminate on impact,

a direct passage and a circuitous passage in said hammer; a collapsible member retaining said hammer in its original position, and a cone'adapted to close said direct passage on the impact of the projectile with a target of great resistance, whereby a flame from the fulminate is compelled to follow the circuitous passage to the detonating charge, on impact of the projectile with a target of great resistance causing delayed actlon; and whereby a flame from the fulminate will follow the direct passage to the detonating charge on impact of the projectile with a target of slight resistance causing direct action.

7. In an impact fuse capable of acting with or without retardation, a movable part adapted to assume either a position in which the fuse will act with retardation or a position in which no retardation will follow, a housing having a solid abutment, and a yielding member interposed between said movable part and said abutment, said yielding member, according to the violence of the impact, being adapted either to retain said movable part in. its original position, in which the fuse will act without retardation or to allow the movable part to pass into a position in which the action of the fuse will take place with retardation.

8. In an impact fuse capable of acting with or without retardation, a movable part adapted to assume either a position in which the fuse will act with retardation or a position in which no retardation will follow, a housing having a solid abutment, and a yielding member interposed between said movable part and said abutment, said yielding member, according to the violence of the impact, being adapted either to hold said movable part in aposition, in which the fuse will act without retardation or to allow said movable part to pass into a position, in which the action of the fuse will take place with retardation.

- 9. In an impact fuse capable of acting with or without retardation, a movable part adapted to assume either a position in which the fuse will act with retardation or a position in which no retardation will follow, said movable part being in the form of a percussion hammer, a housing having a solid abutment, and a yielding member interposed between said hammer and said abutment, The foregoing specification signed at Barsaid yielding member, according to the viomen, Germany, this 11th day of December, 1( lence of the impact, being adapted elilthfir E0 1912.

101d said hammer in a osition in w ic t e fuse will act Without retardation or to allow KARL WIESER' said movable part to pass into a, position, in In presence of which the action of the fuse will take place HELEN NUFER,

with retardation. ALBERT NUFER. 

